Lazy.h

// This file is part of Eigen, a lightweight C++ template library// for linear algebra.//// Copyright (C) 2008 Benoit Jacob <jacob.benoit.1@gmail.com>//// Eigen is free software; you can redistribute it and/or// modify it under the terms of the GNU Lesser General Public// License as published by the Free Software Foundation; either// version 3 of the License, or (at your option) any later version.//// Alternatively, you can redistribute it and/or// modify it under the terms of the GNU General Public License as// published by the Free Software Foundation; either version 2 of// the License, or (at your option) any later version.//// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the// GNU General Public License for more details.//// You should have received a copy of the GNU Lesser General Public// License and a copy of the GNU General Public License along with// Eigen. If not, see <http://www.gnu.org/licenses/>.#ifndef EIGEN_LAZY_H#define EIGEN_LAZY_H/** \deprecated it is only used by lazy() which is deprecated * * \returns an expression of *this with added flags * * Example: \include MatrixBase_marked.cpp * Output: \verbinclude MatrixBase_marked.out * * \sa class Flagged, extract(), part() */template<typename Derived>
template<unsignedint Added>
inlineconstFlagged<Derived, Added, 0>MatrixBase<Derived>::marked() const{
return derived();
}
/** \deprecated use MatrixBase::noalias() * * \returns an expression of *this with the EvalBeforeAssigningBit flag removed. * * Example: \include MatrixBase_lazy.cpp * Output: \verbinclude MatrixBase_lazy.out * * \sa class Flagged, marked() */template<typename Derived>
inlineconstFlagged<Derived, 0, EvalBeforeAssigningBit>MatrixBase<Derived>::lazy() const{
return derived();
}
/** \internal * Overloaded to perform an efficient C += (A*B).lazy() */template<typename Derived>
template<typename ProductDerived, typename Lhs, typename Rhs>
Derived& MatrixBase<Derived>::operator+=(constFlagged<ProductBase<ProductDerived, Lhs,Rhs>, 0,
EvalBeforeAssigningBit>& other)
{
other._expression().derived().addTo(derived()); return derived();
}
/** \internal * Overloaded to perform an efficient C -= (A*B).lazy() */template<typename Derived>
template<typename ProductDerived, typename Lhs, typename Rhs>
Derived& MatrixBase<Derived>::operator-=(constFlagged<ProductBase<ProductDerived, Lhs,Rhs>, 0,
EvalBeforeAssigningBit>& other)
{
other._expression().derived().subTo(derived()); return derived();
}
#endif // EIGEN_LAZY_H